Back to Search
Start Over
Solid State Phosphorescence Enhancement of Pt II -Based Emitters via Combination of π-Hole(Isocyano Group)⋅⋅⋅ d z 2 [Pt II ] and I···Cl Halogen-Bonding Interactions.
- Source :
-
Inorganics . Oct2023, Vol. 11 Issue 10, p403. 15p. - Publication Year :
- 2023
-
Abstract
- The PtII isocyanide complex [Pt(ppy)Cl(CNC6H4-C≡C-Ph)] (1, Hppy=2-phenylpyridine) was co-crystallized with 1,4-diiodotetrafluorobenzene (1,4-DITFB), yielding 1·½(1,4-DITFB) adduct. The I···Cl halogen-bonding and π-π-stacking interactions combined with the rare π-hole(isocyano group)⋅⋅⋅dz2[PtII] interactions were identified via analysis of X-ray diffraction data of the co-crystals. These two types of structure-determining interactions supplemented each other, and the system of I⋯Cl and π-hole(isocyano group)⋅⋅⋅dz2[PtII] contacts achieved a 1D extended ladder-type architecture. The density functional theory calculations, employing a set of computational tools, verified the role of I⋯Cl and π-hole(isocyano group)⋅⋅⋅dz2[PtII] noncovalent bonds in the spectrum of noncovalent forces. The solid-state photophysical study revealed an amplification of luminescence intensity in the co-crystals, which is attributed to the suppression of the nonradiative relaxation pathways due to an increase in the rigidity of the chromophore center. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PLATINUM
*PHOSPHORESCENCE
*DENSITY functional theory
*X-ray diffraction
Subjects
Details
- Language :
- English
- ISSN :
- 23046740
- Volume :
- 11
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Inorganics
- Publication Type :
- Academic Journal
- Accession number :
- 173316156
- Full Text :
- https://doi.org/10.3390/inorganics11100403